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The Effect of Various Detector Geometries on the Performance of CZT Using One Crystal

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CdZnTe (CZT) continues to be a major thrust interest, mainly due to its potential application as a room-temperature radiation detector. The performance of CZT detectors is directly related to the charge collection ability, which can be affected by the configuration of the electrical contact. The charge collection efficiency is determined in part by the specific geometry of the anode contact which serves as the readout electrode. In this work, contact geometries including single pixel, planar, coplanar, and dual anode were systematically explored by comparing the performance efficiencies of the detector using both low- and high-energy gamma rays. To help eliminate the effect of crystal quality variations, the contact geometries were fabricated on the same crystal detector with minimal polishing between contact placements.

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Authors and Affiliations

  1. Savannah River National Laboratory, Aiken, SC, 29808, USA

    Aaron L. Washington II, Lucile C. Teague & Martine C. Duff

  2. Fisk University, Nashville, TN, 37208-3051, USA

    Arnold Burger, Michael Groza & Vladimir Buliga

Authors
  1. Aaron L. Washington II
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  2. Lucile C. Teague
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  3. Martine C. Duff
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  4. Arnold Burger
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  5. Michael Groza
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  6. Vladimir Buliga
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Correspondence to Aaron L. Washington II.

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Published with the permission of Savannah River Nuclear Solutions, LLC.

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Washington, A.L., Teague, L.C., Duff, M.C. et al. The Effect of Various Detector Geometries on the Performance of CZT Using One Crystal. J. Electron. Mater. 40, 1744–1748 (2011). https://doi.org/10.1007/s11664-011-1675-0

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  • DOI: https://doi.org/10.1007/s11664-011-1675-0

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